10 results
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... diarrhea), Sweat ... Bartter syndrome, Gitelman ... syndrome, Hypomagnesemia ... acidosis: Chronic diarrhea
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... losses - Chronic diarrhea ... syndromes - Gitelman ... #Differential # ... Magnesium #Table #Classification
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
diarrhea ... Bartter syndrome, Gitelman ... syndrome, Hypomagnesemia ... acidosis due to diarrhea ... Algorithm #nephrology #differential
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
hypokalemia, mild hypomagnesemia ... potassium wasting) • Hypomagnesemia ... ratio 0.5%) Differential ... • Congenital chloride ... diarrhea Potential
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... - Differential ... Urine Mg < 10g • Diarrhea ... nephrocalcinosis (FHHNC) • Gitelman's ... #Low #Causes #Differential
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential ... Medication • Hypomagnesemia ... tubular acidosis • Gitelman's ... #Hypokalemia #Differential ... Algorithm #Causes #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... NG drainage - Diarrhea ... - Polyuria - Hypomagnesemia ... #Hypokalemia #Differential ... Potassium #Table #Classification
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... NGT suction - Diarrhea ... - Bartter - Gitelman ... • Fatigue Chloride ... Hypochloremia #Differential
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Metabolic Alkalosis: Differential ... contracted: urine chloride ... diarrhea (congenital ... furosemide-like lesion) • Gitelman ... Metabolic #Alkalosis #Differential
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Alcoholism (worsened by hypomagnesemia ... nasogastric suction, Diarrhea ... diuretic use), Gitelman's ... Fever Other: - Hypomagnesemia ... Hypokalemia #Causes #differential